In a large bowl, combine the first seven ingredients. In another bowl, beat eggs; add zucchini, oil and vanilla. Stir into dry ingredients just until blended. Fold in the cranberries and walnuts. Pour unto two greased and floured 9 in x 5 in x 3 in loaf pans. Bake at 350 degrees for 50-60 minutes or until a toothpick inserted near the center comes out clean. Cool for 10 minutes in pans, remove to wire racks to cool completely.